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发明名称
EISENBAHNSCHWELLE AUS SPANNBETON.
摘要
申请公布号
DE1635307(U)
申请公布日期
1952.03.06
申请号
DE195000D1844U
申请日期
1950.12.11
申请人
DYCKERHOFF & WIDMANN KOMMANDITGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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